<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>


</head>

<body>
    <!-- 准备好一个容器 -->
 <div id="test">

 </div>
     <!-- 引入react核心库 -->
     <script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script>
     <!-- 引入react-dom,用于支持react操作dom -->
     <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script>
     <!-- 引入babel 用于讲jsx转js -->
     <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
     <script type="text/babel">
        //1.创建虚拟dom
        const VDOM=<h1>Hello,React</h1> /*此处一定不要写引号,因为不是字符串*/
        //2.渲染虚拟dom到页面
        ReactDOM.render(VDOM,document.getElementById('test'))
     </script>
</body>

</html>